Name and describe how at least 1 biotic factor can contribute to changes in gene frequency over
time through natural selection.

Answers

Answer 1

Answer:

Change in food source.

Explanation:

If there is a change in food source, then the organism will have to adapt to that change. For example, with Darwin's Theory on the finches on the Galapagos Islands. There were many different varieties from different size to different beaks. This was because of changes on food sources and they adapted to obtain them more.

Answer 2

Natural selection can contribute to variations in gene frequency throughout time as a result of changes in food supply.

Changes in gene frequency:

If the organism's food supply changes, it will have to adjust to the new situation.

For example, Darwin's Theory on the Galapagos Islands' finches. There were several distinct types, ranging in size and beak shape. This happened due to changes in food supplies, and they evolved in order to access more of them.

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Related Questions

can anyone pls help me with this?!

Answers

Answer:

1/2

Explanation:

The blocks above represent ecosystems, with each species type designated by a different color. Which block represents the greatest diversity?
1
2
4
5

Answers

Sorry if I’m wrong but I believe it’s 5

Answer: The answer is 5 (D)

Explanation:

   Block 1 has only 1 different type of species

   Block 2 has only 2 different types of species

   Block 3 has only 2 different types of species

   Block 4 has only 3 different types of species

   However Block 5 has 3 different types of species, but they are all of equal size or abundance.

In Block 4 pink and blue are a minority and so the species abundance is low (while the species richness is equal to block 5), block 5 has a higher species abundance and an equal species richness than block 4.

I also just took the test and got it right

Pioneer species are species which colonize previously uncolonized land, usually leading to ecological succession. They are the first organisms to start the chain of events leading to a livable biosphere or ecosystem. Why is a lichen most likely to be a pioneer species?

A The mutualistic relationship of species forming a lichen allows it to survive independently.

B The lichen is fast growing and provides a nutritious food source for many other species.

C The lichen does not require sunlight to survive.

D The lichen is a decomposer that digests rocks and forms soil.​

Answers

Answer: D

Explanation: Bc

Which two systems work together to make the body move?
Muscular and Digestive
Digestive and Circulatory
Circulatory and Skeletal
Skeletal and Muscular

Answers

Answer:

The correct answer is Skeletal and Muscular Systems.

The attraction between hydrogen and oxygen atoms in different water molecules is known as

Answers

its hydrogen bonds.... that's really all I know

what are milk dairy products meat and beans high in?

Answers

Explanation:

Not only are dairy foods like milk, cheese, and yogurt excellent sources of protein, but they also contain valuable calcium, and many are fortified with vitamin D.

Answer:

proteins mostly , calcium and also vitamin D

Genes are portions of
A. DNA
B. RNA

Answers

Answer:

A. DNA

Hope this helps!

Answer:

DNA deoxyribho neuclic acid

If it is true that global warming is causing climate change, why can't animals adapt to the new conditions?

Answers

Answer

they're cool blooded and they can die can't find food

Explanation:

Answer:

Animals can adapt to the new conditions OVER TIME. But, at the rate at which climate change is occuring, there is not enough time for animals to evolve in a way that will keep their species alive. Evolution takes a long time, it doesn't happen over night. On top of that, many oceans are becoming acidic and are losing oxygen faster than marine animals can evolve.

Which of the following statements about green algae is true?


a. They are found in dry areas on land

b. They are multicellular plants.

c. Evidence suggests they were the first plants.

d. Like other plants, they have true-water conducting tissue.​

Answers

I think it's (c). Evidence suggests they were the first plants

Explanation

Evidence shows that plants evolved from freshwater green algae, a protist

There's similarities between green algae and plants .both plants and green algae contain the same form of chlorophyll.

but land plant are multicellular and autotrophic

What the climate in the Anacostia watershed been like over the past few 12,500 years?

Answers

Answer:

Forested floodplain on Indian Creek, a tributary of Anacostia River in Prince George’s County, Maryland.

Explanation:

The climate in the Anacostia watershed been like over the past few 12,500 years was forested, floodplain on Indian Creek, a tributary of Anacostia River in Prince George’s County, Maryland.

What is climate?

The long-term pattern of the weather in a place is called the climate. Climate is the There is different climatic regions on the earth and this is due to changes in location.

One of the most densely populated metropolitan basins in the Chesapeake Bay watershed, the Anacostia River watershed encompasses suburban Maryland and the District of Columbia.

Therefore, for the past 12,500 years, the Anacostia watershed in Prince George's County, Maryland, has had a climate that was characterized by forested floodplains and Indian Creek, a river that flows into the Anacostia River.

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Identify the role of the plankton in the full marine chain # 6. For example: Is it a consumer (level of consumer), producer, or decomposer?

Answers

Producer, depending on where it is in the chain. Could be consumer if it’s consuming seaweed or any sea plants

Which observation of a plant supports the inference that photosynthesis can take place? *

A) a strong, sweet smell
B) a rough, dry texture
C) a green color
D) a smooth stem

Answers

Answer:

C) a green color

Explanation:

the green represents the chloroplasts present in the plant that contain the chlorophyll

many of the molecules found in the body are organic.
A: make an argument for which three biological molecules you feel are the most important for the body.
B: water is inorganic but still essential. could humans live without water? why or why not?​

Answers

A. The three most important biological molecules are proteins, nucleic acids, and carbohydrates. Proteins are responsible for signaling receptors and play a key role in DNA production. Nucleic acids, similar to proteins, make up our DNA and make us who we are. Carbohydrates provide us with energy and help our body function.

B. We’ve become so dependent on water that I’d say it’s impossible for humans to live without it. At the most fundamental level, everything we consume — both literally and metaphorically — contains or utilized water. Our favorite foods, drinks, and even buildings contain a percentage of water. Maybe things would be different if we hadn’t allowed it to play such an essential role in practically everything we use, but they aren’t. We need water, which is why going 2 weeks without water could kill us. Sure, there are substitutes for water like milk, but milk is not as good for us as water is. Water balances and purifies our body, while milk fills it up with more waste.

ASAP


Which information can best be used as evidence to support
the answer to Part A?
Select all that apply.

A. Desert areas have less precipitation that non-desert areas.

B. Both desert and non-desert plants absorb light from the Sun.

C. Plants in both desert and non-desert areas can grow leaves.

D. Lower temperatures in non-desert areas reduce the rate of evaporation.

E. Desert areas are most often found at low latitudes.

Answers

Answer: i think it is c and b but im not sure

Explanation:

Which organelle stores the information that determines an individual's hair 1 point
color?

A.Organelle 1

B. Organelle 2

C. Organelle 3

D.Organelle 4

Answers

Answer:

A.

Explanation:

Meiosis requires
divisions of the cell and makes
daughter cells.
O 1:2
0 2:4
2;2.
o
1:4

Answers

Answer:

1;2

Explanation:

What do we make with the energy we get from our food

Answers

This energy comes from the food we eat. Our bodies digest the food we eat by mixing it with fluids (acids and enzymes) in the stomach. When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose.

What would be the difference in the rate of photosynthesis in December compared to July? (Remeber that December has the shortest amount of daylight and July has the longest amount of daylight each day.)

Answers

Photosynthesis requires sunlight for plants to make food. Therefore, the rate of photosynthesis in December would be slower than in July, since there is less sun in December :)

Which of the following is not true concerning tropical plantations?
a.
They are generally found in humid, tropical climates.
b.
Wheat and corn are common products of tropical plantations.
c.
Most crops from tropical plantations are exported.
d.
Cocoa, coffee and tea are common products of tropical plantations.


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

Wheat and corn are common products of tropical plantations.

Answer:

the answer is b just took the quiz. ;)

Explanation:

The fact that water heats and cools more slowly than land causes many different types of weather. What is the primary source of heat for land and water?

A. heat from inside the Earth
B. energy from electricity
C. energy from the Sun
D. heat from friction in the air

Answers

C: energy from the sun

The primary source of heat for land and water is c. energy from the Sun as it is the only primary source of energy on earth.

How does water molecules get heated?

When water molecules are heated, they change freely with the air in a procedure referred to as evaporation. Ocean water is continuously evaporating, growing the temperature and humidity of the encircling air to shape rain and storms which can be then carried through alternate winds.

Because water has a far better warmness capacity, or precise heat , than do sands, soils or different materials, for a given quantity of sun irradiation (insolation), water temperature will boom much less than land temperature.The heat supply for our planet is the solar. Energy from the solar is transferred thru area and thru the earth's surroundings to the earth's floor. Since this energy warms the earth's floor and surroundings, a number of it's miles or turns into solar energy .

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how do we impact the Earth?​

Answers

HOW DO WE IMPACT THE EARTH?

Human-caused impacts on planet Earth have become a recurring theme, and more and more people speak of a path of no return. Global warming, greenhouse gases, the exploitation of natural resources and the production of solid and atmospheric waste are some of the most urgent problems that the global community must deal with if we want a quality future for the next generations.

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Construyamos 5 preguntas que nos sirvan para conocer más acerca de qué son las normas y las leyes y para qué nos sirven,

Answers

Answer:

Preguntas:

1- ¿Cómo definiría a una norma y a una ley?

2- ¿Cuál es la diferencia entre ambas?

3- ¿Qué sucede ante el incumplimiento de una norma y una ley?

4- ¿Quién define una norma y una ley?

5- ¿Cuáles son los ejemplos que podría dar acerca de las leyes y las normas?

Explanation:

Las preguntas formuladas sirven para crear los conceptos de normas y leyes y ahondar en su significado. De esa manera se construyen sus significados, sus límites y se pueden comparar ambas palabras. A su vez, es necesario establecer quién debe controlarlas y ayudar con ejemplos permite visualizar de manera más gráfica y con ejemplos más sencillos para poder entender.

Which of the following best describes the structure of the cell membrane?​

Answers

i believe it is a or d

Many scientists worry that the influence humans have on the biogeochemical and hydrologic cycles will cause lasting damage to Earth. Make a list of the activities you perform in a day that may impact one of these cycles. Explain how you are interacting with the cycle and how that could be affecting your local ecosystem. What can you do to decrease your impact?

Answers

Answer:

Driving a car, smoking, burning of woods for heating purpose and cooking food.

Explanation:

Driving a car, smoking, burning of woods for heating purpose and cooking food are the activities that are performed in our home daily. These activities greatly affected the biogeochemical and hydrologic cycles by increasing the concentration of carbondioxide gas in the atmosphere. Burning of fossil fuels in the car engine and burning of woods releases carbondioxide gas that causes air pollution. The use of electric cars and electric heater can decrease the impact on these biogeochemical and hydrologic cycles.

If you have the template DNA strand with GCG, what is the complementary amino acid after translation?​

Answers

CGG

it has been transcribed

Oxygen from the air enters the blood stream at what location?
A) Aorta
B) pulmonary vein
C) alveoli
D) pulmonary artery

Answers

Answer:

alveoli

Explanation:

In which process is carbon NOT released into the environment?

A. exhaling
B. condensation
C. excretion
D. decaying

Answers

Condensation does not release carbon

Yea it’s C coming from the person above

Is the trend in biomass in Pyramid X the same as seen in Pyramid Y? Explain your answer.

Answers

no the mass of the producers is smaller than the mass of primary consumers,after that level the biomass of each trophic level decreases steadily.
got it off of a quizlet for u shawty

Describe how a mutation in the DNA of a cell can affect the functioning of an enzyme.​

Answers

Explanation:

A mutation is a change in the DNA base sequence. This causes a change in the amino acid that is synthesised, and this could change the shape of the active site on an enzyme. ... This means that the substrate may be able to bind to the enzyme better, making the enzyme more effective.

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Identify the structure shown below.

Answers

Answer:

I want to say gastrula

Explanation:

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